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US 6,503,019 B1Granted
Replaceable top tube for bicycles
OwnerChiu Kuei Wanginventor
Life of this patent
Estimating the term…
Abstract
A replaceable top tube includes an outer tube and an inner tube retractably received therein. Two sleeves are respectively connected to the outer tube and the inner tube, and two locking plates are respectively connected to the two sleeves. Two hooks are respectively connected to the inner tube and the outer tube so that when the sleeves are pulled, the locking plates are moved away from the hooks so as to hook the seat post and the handlebar stem of a bicycle. Each of the two sleeves are positioned by a resilient member.
Claims7
A replaceable top tube, comprising:
- an outer tube having a first aperture defined through a wall of a first end of said outer tube, a first sleeve slidably mounted to said first end of said outer tube and having a first hole which is located in communication with said first aperture, a locking plate fixedly connected to said first sleeve and a first hook fixedly connected to said first end of said outer tube, said locking plate engaged with said first hook when said first sleeve is not pulled;
- a resilient member located in said first end of said outer tube and a pushing end of said resilient member extending through said first aperture and said first hole, and
- an inner tube having a first end thereof retractably received in a second end of said outer tube and a second aperture defined through a wall of a second end of said inner tube, a second sleeve slidably mounted to said second end of said inner tube and having a second hole which is located in communication with said second aperture, another locking plate fixedly connected to said second sleeve and another hook fixedly connected to said second end of said inner tube, said another locking plate engaged with said another hook when said second sleeve is not pulled.
Dependencies are inferred from the claim text.